Glass-cutting machine.



H. D. MADDEN. GLASS CUTTING MACHINE. APPLICATION FILED DEC. 5, 1910.1,123,336.

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Patented Jan. 5, 1915..

w wliw j WITNESSES:

A'TTORNEY SAT HARRY D. MADDEN, OF BLOOMFIELD, NEW

JERSEY, ASSIGNOR TO WESTINGHOUSE LAM]? COMPANY, A CORPORATION OFPENNSYLVANIA.

GLASS-CUTTING MACHINE.

Specification of Letters ZPatent.

Patented J an. 5, 1915.

Application filed December 5, 1910. Serial No. 595,634.

To all whom it may concern:

Be it known that I, I'IARRYYD. MADDEN, a citizen of the United States,and a resident of Bloomfield, in the county of Essex and State bf NewJersey, have invented a new and useful Im rovement in Glass-CuttingMachines, of w ich the following is a speciiication.

My invention relates to glass cutting ilnachines, and it has for itsobject to provide a simple machine of large capacity for accuratelycutting rods or canes of glass in comparatively short lengths. 1

Figure l of the accompanying drawings is a View, in section and inelevation, ot a machine constructed in accordance with my invention, andFig. 2 is a plan view of the said machine.

The machine comprises a hollow base 1 and a superposed standardconsistin of vertical rods 2 and spaced horizontal p ates 3 and 4 thatare carried by the rods and are provided with alined apertures 5arranged in circles.

Extending between the plates 3 and 4 and connecping the aperturestherein, are vertical tubes 6, which, together with,the aperturedplates, constitute guides through which are fed the rods or canes 7 tobe cut into lengths.

The plate 4. and the base 1 are provided with lateral bearings 8 and 9,respectively, for a vertical shaft 10 upon the lower end of which isloosely mounted a main driving pulley 11 thatis adapted to be driven bya belt (not shown) from any suitable source of power, and the upper faceof the hub 12 of which is provided with bosses and re ceasesconstituting a clutch member 13. Directly above the pulley 11, acorresponding clutch member 14 is secured to, but is longitudinallymovable on, the shaft 10, and is adapted to be moved into and out ofengagement with the clutch member 13, to provide or to interrupt anoperative connection between the pulley 11 and the shaft 10, by means ofa lever 15 one end of which projects through a slot in the base 1 and isprovided with a thumbnut 16 for clamping the lever in eitherclutch-engaging or clutch disengaging position.

Mounted upon the shaft 10, directly beneath the plate 2, is an eccentric19 having a rubber or other suitable resilient edge or tire 20, theportion'of which. that is most remote from the shaft being adapted toengage the rods or canes 7 and to successively clamp them stationarily.

A short distance beneath "the eccentric 19, the shaft 10 also carries anarm or plate 22 upon the upper face of which a member 23, having aslotted outer end, is pivotally mounted, a hardened steel or othersuitable cutter 24 being rotatably mounted in the slot at the outer endof the said member. The member 23 is normally retained in the positionshown in F ig. 2 by means of a helical compression spring 25 that isinterposed between the said mcmber and a shoulder upon a screw 26 thatis threaded in a boss on the arm 22 and is provided for the purpose ofadjusting the pressure exerted by the spring 25. The normal position ofthe member 23 is adjustable and is determined by means of another screw27 that is threaded in another boss carried b the arm 22. The said partsprovide a resi lent mounting for the revoluble cutter that is capable ofa limited degree of movement, independently of its revolution. Engagingthe rods 7, upon their outer faces, directly opposite the points wherethey are engaged and cut by the cutter 2%, l

is a stationary ring 28 having a \I-shape inner edge, which forms anarrow support against which the rods are pressed by the cutter.

Secured to one side'of, and carried by the arm 22, and comprising nearlone complete convolution, is a helical sli e or chute 29 upon which therods or canes drop when released by the member 20 and by means of whichthey are lowered, during the rotation of the slide, upon a rest or plate30 that is carried by, and is longitudinally adjustable on, the shaft 10to determine the length of the pieces into which the rods or canes areto be cut. The rods or canes are thuslowered upon the rest 30 withoutundue jar, and breakage is thereby reduced to a minimum.

Mounted upon the shaft 10, beneath the arm 22, is a second eccentric 31that is provided with a rubber or other suitable resilient tire 32, theportion of which most remote from the shaft is adapted to engage therods or canes 7 at about the time they are engaged b the cutter 24: orimmediately thereafter an to press their lower ends outy, in. order todeflect the same and cause breakage thereof at the points where theyhave beeh out n the operation of the machine, the rods are fed. into theapertures in the plate 3 and lowered upon the helical chute 29. and theplate 30, the greater number of them resting upon the chute, while onlya few that are between the lower end of the chute and the cutter M restupon the plate 30. As the shaft .10 is rotated, the member 20 engagesthe rods or canes 7 slightly in advance of the cutter 2d sides of theapertures in the member 4 and against the inner face of the ring-28.They are thus prevented from vibrating when the cutter en ages them,When the cutter 24 enga es t e rods, it scratches 'or cuts them, an yreason of its resilient mounting, the cutting operation is performedeffectively and with a minimum breakage of the rods or canes,

At the same time that the rods are cut,- or a short interval thereafter,the member 32 engages the lower ends of the rods and deflects themoutwardly, therebycausing breakage at the points Where they werescratched or out. The member 20 continues to engage the rods or canesand prevents them from dropping for a short interval after the rods havebeen cut and broken, and untilwthe slide or chute 29 has been broughtbeneath the newly cut ends thereof, After the rods have dropped uponthe. slide or chute, they are graduallylowered by the ,revolution of theslide until they drop upon the rest 30, by means of which the lengthinto which the rods are to he cut is determined, the rods being outonlywhen standing upon the rest.

claim as my invention:

1. A rod cutting machine comprising a plurality of vertical guides forthe rods, means for successively clamping andreleasing the rods in theguides, a cutter that successively engages the rods, a rest for therods, and a movable inclined slide for lowering the rods from the guidesupon the rest.

and presses the same against the plurality of guides arranged in acircle, a

rotatable eccentric for successively clamping and releasing the rods, arevoluble cutter, a, ring engaging the rods upon the sides opposite thepoints of cutting, a rotatable eccentric for breaking the rods afterhaving been cut,a rest for the rods, and a rotatable helical slide forlowering the rods upon the rest.

4. A rodcutting machine comprising a plurality of guides for the rods,successively clamping and, releasing the rod a revoluble resilientlymounted cutter, a ring adapted, to engage 'the rods upon'the sid soppositethe points of cuts ting, means for "breaking the rods after ing;been out, a rest for the rods, and means'for gradually lowering the rodsupon the. f e

5, A rod cutting machine comrising a plurality of guides arranged in acircle, and

means for a cutter rotating about the center of said HARRY D. MADDEN.

Witnesses:

' Orro S. SCHAIRER,

CHARLES E. KELLY.

cutter adapted to succes-

